Like most sixth graders, Andrew Courey is usually playing sports and toying with his iPhone when he’s not in school. But unlike most other 11-year olds, he’s also an expert on bitcoin.

Courey is the author of “Early Bird Gets The Bitcoin: The Ultimate Guide To Everything About Bitcoin,” which he self-published for the Amazon Kindle in January. The e-book sells for $2.99, and the paper copy, just released, costs $9.99.

The son of a tech investor, Courey loves math, enjoys tinkering with mobile apps and frequently comes up with business ideas. At one of his recent basketball games, upset with a foul call, he walked over to his dad on the sidelines and suggested creating the “Glassdoor for referees” — a website for grading officials.

Last year, he was looking for investment opportunities as part of an ambitious plan to earn $20 million by the age of 14, which would enable him to drop out of school, according to an agreement with his parents. Courey came across bitcoin and began reading stories and watching YouTube videos about miners and early investors who had made a lot of money from the digital currency.

Given the run-up in prices last year, when bitcoin surged almost 17-fold, Courey wasn’t sold on the currency as an investment. But knowing that his son was looking for sources of “passive income,” Jeff Courey, Andrew’s dad, convinced him to write and sell a book that could put all his research to good use and simplify the many complex ideas around bitcoin and blockchain. Read more from cnbc.com…

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